SPECTRA PREMIUM B004AJ28MK Ignition Coil C-622

( Brand: Spectra Premium ), ( Manufacturer Part Number: B004AJ28MK ), ( Compatible Model: C-622 ), ( Compatible Brand: Universal ), ( Type: Unit ), ( Color: Multicolor )

Review SPECTRA PREMIUM Ignition Coil

The **Spectra B004AJ28MK C-622 Ignition Coil** is a high-performance, precision-engineered component designed to deliver reliable and efficient spark generation for modern gasoline-powered internal combustion engines. Part of Spectra s trusted line of ignition systems, this coil is meticulously crafted to meet or exceed OEM specifications, ensuring seamless compatibility with a wide range of vehicles, including those equipped with coil-on-plug (COP) ignition systems. Built with a robust, high-quality core made from specialized ferrite materials, the C-622 coil is engineered to minimize energy loss and maximize voltage output, producing a strong, consistent spark even under demanding operating conditions. Its compact yet durable design features a sleek, corrosion-resistant housing that protects internal components from environmental contaminants, moisture, and thermal stress, thereby extending the coil s operational lifespan. The coil incorporates advanced winding technology, with tightly coiled copper wire layers that optimize magnetic flux and reduce resistance, resulting in a more efficient transfer of electrical energy to the spark plugs. This precision engineering translates to improved engine performance, smoother idle, and enhanced fuel efficiency, as the coil ensures optimal combustion cycles. Whether installed in high-mileage vehicles requiring a reliable replacement or in performance-oriented engines seeking peak ignition reliability, the Spectra C-622 coil stands out for its durability, consistency, and adherence to strict manufacturing standards. Backed by Spectra s reputation for quality and backed by a robust warranty, this coil is an excellent choice for both professional mechanics and DIY enthusiasts looking to restore or upgrade their vehicle s ignition system with confidence.

**Pros and Cons of buying a Spectra B004AJ28MK (C-622 Ignition Coil)**

1. **Compatibility:** This coil is designed specifically for certain vehicle models, ensuring a proper fit and optimized performance. It is commonly used in applications such as the Chevrolet Silverado, GMC Sierra, and other GM vehicles with the C622 engine configuration.

2. **Reliability:** Spectra is a well-known brand in the automotive aftermarket, known for producing high-quality ignition components. The C-622 coil is often praised for its durability and consistent performance, reducing the likelihood of frequent failures.

3. **Performance:** A properly functioning ignition coil ensures efficient spark generation, which can improve engine performance, fuel efficiency, and overall drivability. This coil is designed to meet or exceed OEM specifications, providing strong and reliable sparks.

4. **Ease of Installation:** Ignition coils are relatively straightforward to replace, and this coil is designed to be a drop-in replacement for the OEM part. The installation process typically requires minimal tools and expertise.

5. **Cost-Effective:** While the price may vary, this coil is generally affordable compared to OEM replacements, offering a cost-effective solution for maintaining or upgrading your vehicle s ignition system.

6. **Warranty:** Spectra products often come with a warranty, providing peace of mind and protection against defects. This can be particularly valuable if the coil fails prematurely.

7. **Availability:** As a popular aftermarket part, this coil is widely available through online retailers, auto parts stores, and dealerships, making it easy to purchase and replace.

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1. **Potential Counterfeit Products:** Due to the popularity of this coil, there is a risk of purchasing counterfeit or low-quality replicas, especially when buying from untrusted sellers. Counterfeit coils may fail prematurely or not perform as expected, leading to further issues.

2. **Mismatched Specifications:** While the coil is designed for specific applications, there is a possibility that it may not perfectly match the exact specifications of your vehicle s engine, particularly if modifications or upgrades have been made. This could result in suboptimal performance or compatibility issues.

3. **Quality Variability:** Even from reputable sellers, the quality of aftermarket coils can vary. Some units may not meet the same standards as the original equipment manufacturer (OEM) or other high-quality brands, leading to inconsistent performance or shorter lifespan.

4. **Misdiagnosis of Issues:** If the coil is replaced without properly diagnosing the root cause of the problem (e.g., faulty spark plugs, wiring issues, or engine sensors), the problem may persist or recur. Always ensure the issue is isolated to the coil before replacement.

5. **Compatibility with Modified Engines:** If your vehicle has been modified (e.g., turbocharged, supercharged, or tuned), the stock ignition coil may not be sufficient for the increased demands. In such cases, a higher-performance coil may be necessary.

6. **Installation Risks:** While installation is generally simple, improper handling or installation (e.g., damaging wiring, improper torque on bolts) can lead to electrical issues or mechanical failures. Ensure you follow the manufacturer s guidelines or consult a professional if unsure.

7. **Limited Longevity in Harsh Conditions:** Like all ignition components, this coil may have a shorter lifespan in extreme conditions (e.g., high humidity, extreme temperatures, or corrosive environments). Regular maintenance and inspection are recommended.

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The Spectra B004AJ28MK (C-622 ignition coil) is a solid choice for vehicles requiring a reliable and affordable replacement coil. Its compatibility with common GM applications, reputation for quality, and ease of installation make it a practical option for many drivers. However, potential buyers should be cautious of counterfeit products, ensure proper diagnosis before replacement, and consider the specific needs of their vehicle especially if modifications have been made. Purchasing from a trusted retailer and verifying the product s authenticity can mitigate many of the risks associated with aftermarket parts.

If you are replacing a faulty ignition coil in a compatible vehicle and have confirmed that the issue lies with the coil itself, the Spectra B004AJ28MK is a reasonable and cost-effective choice. To maximize reliability, purchase from a reputable seller (such as Amazon, RockAuto, or a trusted local auto parts store), and ensure the coil is genuine. If your vehicle has been modified or you are unsure about compatibility, consult a mechanic or consider a higher-performance coil designed for your specific application. Always follow proper installation procedures to avoid damaging the coil or surrounding components. Regularly inspect the ignition system to catch potential issues early.

Details:

Spectra Premium Ignition Coils are designed and produced under strict quality control processes. All these quality control procedures help ensure SPI ignition coils deliver consistent Premium quality, performance and dependability. Spectra Premium C-622 Ignition Coil: Product Features: Limited Lifetime Warranty. All of this combined with a Limited Lifetime warranty makes Spectra Premium the obvious choice.

Salt spray tested for 24 hours to ensure sensors provide high corrosion resistance. Specifications: Item weight 1.76 pounds, Product dimensions 3.0 x 3.5 7.3 inches, Part number C-622, model Manufacturer Spectra Premium. From raw materials to the final assembly, every production process goes through rigorous testing requirements ensure each product meets or exceeds Original Equipment OE specifications for fit, form and function. Built to meet or exceed Original Equipment OE fit, form and function ensure proper installation performance.

Durability tested at 100 cycles of thermal shock 50 to 300 degrees Fahrenheit, ensure reliability from extreme vibration.

part #: b004aj28mk prices

• $29.34-$31.12

specifications speakerpartgo:

• brand: Spectra Premium
• mpn: B004aj28mk
• compatible model: C-622
• compatible brand: Universal
• type: Unit
• color: Multicolor

offer speakerpartgo:

• quantity: 2
• sold: 0
• options: Ship-to-home
• started: May 6, 2026
• availability: In Stock

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• credit card: Visa
• wallet: Apple-pay
• other

general speakerpartgo:

• condition: New
• TV, Video Audio Parts > Speaker Parts Components > Voice Coils

seller speakerpartgo:

• # reviews: 78
• rating: 100.0%
• city: Arlington, Massachusetts

shipping speakerpartgo:

• cost: $0.00
• type: Fixed
• transit: 3-9 Days
• class: Standard
• service: Standard

returns speakerpartgo:

• paid by: Seller
• method: Money back
• policy: Returns Accepted
• time: 30 Days

Spectra Premium B004AJ28MK Is Similar To:

• Spectra Premium B00q0d3jya C-624 Ignition Coil (84.8% similar) Each new coil is road tested to ensure real world performance and verify that each design meets Spectra Premiums high standards for quality. Unit is tested for durability through long-cycle thermal shock test 50 to 300 degree, ensuring reliability against extreme vibrations. Fit type: vehicle ...(May 6th, 2026)